Home / 118,155.45-163,052.75-64,440.35

Finding the Fourth Proportional to 118,155.45, 163,052.75 and 64,440.35

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Solution

The fourth proportional to 118,155.45, 163,052.75 and 64,440.35 is: 88,926.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,155.45 : 163,052.75 = 64,440.35 : x
  2. Step 2: Convert to fraction form
    118,155.45/163,052.75 = 64,440.35/x
  3. Step 3: Cross multiply
    118,155.45x = 163,052.75 × 64,440.35
  4. Step 4: Simplify right side
    118,155.45x = 10,507,176,278.46
  5. Step 5: Solve for x
    x = 10,507,176,278.46/118,155.45
  6. Step 6: Final answer
    x = 88,926.72

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.